If I do not have a Grab App can I still make payment using GrabPay? May 06, 2022 08:23 Updated Sorry, you will need to use a Grab App to pay using GrabPay. Related articles How do I make payment using GrabPay? I’ve left the restaurant and realised I was charged incorrectly. I’m not willing to go back to the store. How can I get a refund? Is there extra charge if I pay using GrabPay? I’ve experienced an issue and want a refund. How can I get a refund? I do not want to use GrabPay. Can I pay using other methods?